refactor(wc): use uucore's SIMD policy instead of local cpu_features

- Add "hardware" feature to uucore dependency in Cargo.toml
- Replace local cpu_features module with uucore::hardware::simd_policy
- Update debug output to use enabled_features() method for consistency

src/uu/wc/Cargo.toml

@@ -19,7 +19,7 @@ path = "src/wc.rs"
 
 [dependencies]
 clap = { workspace = true }
-uucore = { workspace = true, features = ["parser", "pipes", "quoting-style"] }
+uucore = { workspace = true, features = ["parser", "pipes", "quoting-style", "hardware"] }
 bytecount = { workspace = true, features = ["runtime-dispatch-simd"] }
 thiserror = { workspace = true }
 unicode-width = { workspace = true }

src/uu/wc/src/count_fast.rs

@@ -4,7 +4,8 @@
 // file that was distributed with this source code.
 
 // cSpell:ignore sysconf
-use crate::{cpu_features, word_count::WordCount};
+use crate::word_count::WordCount;
+use uucore::hardware::simd_policy;
 
 use super::WordCountable;
 
@@ -232,7 +233,7 @@ pub(crate) fn count_bytes_chars_and_lines_fast<
 ) -> (WordCount, Option<io::Error>) {
     let mut total = WordCount::default();
     let buf: &mut [u8] = &mut AlignedBuffer::default().data;
-    let simd_allowed = cpu_features::simd_policy().env_allows_simd();
+    let simd_allowed = simd_policy().allows_simd();
     loop {
         match handle.read(buf) {
             Ok(0) => return (total, None),

src/uu/wc/src/wc.rs

@@ -7,7 +7,6 @@
 
 mod count_fast;
 mod countable;
-mod cpu_features;
 mod utf8;
 mod word_count;
 
@@ -28,6 +27,7 @@ use utf8::{BufReadDecoder, BufReadDecoderError};
 use uucore::translate;
 
 use uucore::{
+    hardware::simd_policy,
     error::{FromIo, UError, UResult},
     format_usage,
     parser::shortcut_value_parser::ShortcutValueParser,
@@ -827,15 +827,15 @@ fn wc(inputs: &Inputs, settings: &Settings) -> UResult<()> {
     };
 
     if settings.debug {
-        let policy = cpu_features::simd_policy();
-        if policy.env_allows_simd() {
-            let available = policy.available_features();
-            if available.is_empty() {
+        let policy = simd_policy();
+        if policy.allows_simd() {
+            let enabled = policy.enabled_features();
+            if enabled.is_empty() {
                 eprintln!("wc: debug: hardware support unavailable on this CPU");
             } else {
                 eprintln!(
                     "wc: debug: using hardware support (features: {})",
-                    available.join(", ")
+                    enabled.join(", ")
                 );
             }
         } else {